Kerosene-gas generator.



F. N. .PERGIVAL &: W. PATTERSON.

KEROSENE GAS GENERATOR. APPLICATION FILED JULY 10 1913. I Patented Mar. 9, 1915.

W 1 it FRANK N. PERCIV AL AND WILLIAM PATTERSON, OF CHICAGO, ILLINOIS.

'KEROSENE-GAS GENERATOR.

"Specification of Letters Patent.

Patented Mar. 9, aura.

Application filed July 10, 1913. Serial No. 778,371.

gine in place of the, at the present time,

more expensive gasolene. The device may, however, be used for handling other explo' sive'or ignitible liquids. I

The object of the invention is to prov1de a device corresponding in general function to the well known types of carburetenwhich will gasify commercial kerosene oil and mix it with passing air so as to produce a proper combustible mixture for use in the engine.

Broadly speaking, the invention consists in a device of this character which can be easily and cheaply made andinstalled, which operates satisfactorily and is not readily liable to get out of order.

More in detail, the invention consists in a device in which apredetermined regulatable quantity of kerosene or. other combustible liquid is brought in contact with a heated plate in proximity to a passing current of air, the plate in the first instance being heated by electricity and later, if desired, by the exhaust gases from the engine.

The invention further consists in more specific details which will be hereafter more fully described and claimed.

In the drawings, Figure 1 is a vertical sec- I tional detail view through the approximate center of a device illustrating this invention in its preferredform. Fig. 2 is a plan detail view taken on the line 22 of Fig. 1. Fig. 3 is a perspective detail view of a valve control weight.

In constructing the device of this invention some sort of an exterior case 10 is, of course, provided. It may take any suitable form so as to provide within it a mixing chamber 12 similar to that found in all car bureters. At some convenient portion of the bottom of the side wall of the carbureter is providedan air intake port 14 and near the top is provided an exhaust port 16 controlled, if desired, by a butterfly valve 18 of ordinary construction. The mixing chamber 12 is also entered by another air passageway 20 controlled by a supplemental air intake valve 22 of ordinary construction, forming no part of this invention.

If desired, a transverse pipe or pipes 24 maybe passed through the upper portion of the mixing chamber so that air entering "the carburetor through the air intake 14 may, by suitable connecting pipe not shown, be drawn through this pipe 24, with the result that when hot gases are in the mixing chamber 12 and passing from it through the exhaust port 16 they will, by coming in contact with the pipe 24, give up some of their heat to the incoming air which is, in the.

manner described, passing through said pipe 24 to the port 14.

In or near the bottom of the case 10, and preferably screw threaded therein at 26, is a heating plate 28 provided in its interior, not shown, with electric heating devices of the character well lmown in the electrical artaso arranged that when electric wires carrying electric current are attached to the two terminals 30 the electric plate 28 will be heated to a sufficient temperature so that any kerosene oil dropped upon the'interior upper face 32 of the plate will be immediately vaporized or gasifiettand rising from the" I plate become mixed'with the air entering the mixing chambe1f123through the air intake 14. The electrical device for heating this plate 28 is always to be used in starting the engine but after the engine has been working a few minutes the hot exhaust the electric heater may be used all the time and the exhaust heat not used at all if desired.

Located inside the mixing. chamber 12 is 'a downwardly pointed oil nozzle 36 controlled by a vertically movable needle pointed valve plunger'38 and supplied with oil through a pipe or passageway 40 connected to any suitable source of supply, not shown. When the plunger 38 is in the position shown in the drawing with its lower end seated at 42 the supply of oil delivered by pipe 40 is shutofl from nozzle 36. When the valve is raised off from its seat oil flows through pipe 40 and nozzle 36 onto the surface 32 f the plate 28.

The valve mechanism just described is inclosed or covered by a hood device 44 which case wall extends down to within a relatively narrow space 46 of the plate surface 32; this so that the suction of the engine cannot draw the kerosene. oil into the passing air before the oil has struck the heating plate and become vaporized.

Pi-voted at 50 on the inside of the mixing chamber 12 is a horizontal lever 52 having a horizontal enlarged flat wing 54, as shown. This lever 52 is connected by a pin and slot connection v56 to the upper end of valve plunger 38. Vertioallyextending from the lever 52 and rigidly connected thereto is an arm 58 having in its end an elongated slot 60 in which a horizontal rod 62 slidable through the side wall 10 of the case is adapted to move. On this rod 62 adjacent to the arm 58 are two flanges or heads 64 and 66 spaced some little distance apart, as shown, so that when the rod 62 is in the position shown in the drawing the valve 38 may be opened and closed; 2'. 6., moved between open and closed position without the arm 58 contacting the flanges 64 and 66.

Between the flange 64 and the lug 68 on the wall of the case is a spring 7 0 normally holding the rod 62 in the position shown in the drawing, with the flange 72 on rod 62 outside the case in contact with the case wall. Connected to the outer end of the rod 62 is acord or wire 74 leading away to an operators station.

Suitably screw threaded through the side Wall of the case is an adjusting screw 76 operated by a hand nut 78 and locked by a lock nut 80 adapted to prevent the arm 58 moving farther than desired in a counter clockwise direction about the pivot 50. By adjusting this screw 76 in and out of the the arc of movement of the arm 58 about pivot 50 may be varied thus varying the extent to which the valve plunger 38 may be lifted off from the seat 42; in other words, this device regulates the maximum amount of oil which may flow through the pipe 40 and the nozzle 36.

When the parts are in the position shown and the engine, not shown, attached to port 16 is cranked, the suction created within the engine draws air through port 14 under and around plate 54 thereby lifting it. This action simultaneously lifts valve member 38 from its seat 42 thus allowing oil to drop onto he face 32 of the electrically heated plate 28. The oil so dropped upon the plate is immediately gasified and passes through space 46 into the entering air with which it is mixed and with which it passes around the pipe 24. and out through the exhaust port 16 into the engine where it is burned or ignited in the ordinary manner.

If desired, the operator may pull the cord 7 4 before cranking theengine and thus open the valve 38 and admit some oil onto the plate surface 32 before starting to crank the engine. It is thus seen that each successive pull of the engine upon the exhaust port 16 automatically opens the valve and allows a fixed quantityof oil to be discharged onto the upper surface 32 of the hot plate; the amount of this oil being regulated by the position of the adjusting screw 76.

hen the engine is actually running the exhaust air from the engine may be switched I through the passageway 34 and the electric current cut off from the terminals 30 in the manner described.

Attention is called to the fact that the oil nozzle is pointed downward toward the heated plate and that the oil after striking the plate is drawn upward through the exhaust opening at the top of the carbureter chamber. This is important because permitting the more or less thick oil to flow downward facilitates its movement while it is thick andits striking the plate and reversing its direction under the action of the air passing through the chamber tends to atomize it much more thoroughly and efiiciently than when it is moving in a single direction only.

By making the air intake port 14 at the side of the plate and the air exhaust port 16 above the plate the incoming air is prevented from seriously cooling the. electric plate as would be the case if it passed through it, and at the same time it more easily reaches and controls the blade 54 than it would if it were admitted at any point under the hood 44. i

What we claim is:

1. In a .device of the class described, the

combination with a mixing chamber provided with constantly open air entrance and exhaust ports, a heatable plate within 'the mixing chamber, means other than exhaust from the engine to which the device is to be applied for heating said plate, means for admitting oil to said plate Within the mixing chamber, and means operated by the pull of the air passing through said mixing chamber for controlling the admission of oil to said plate.

In a device of the class described, the combination with a mixing chamber provided with constantly open air entrance end exhaust ports, a heatable plate within the mixing chamber, means heating said plate, means for admitting oil to'said plate within the mixing chamber, means operated by the pull of the air passing through said mixing chamber for controlling the admission of oil to said plate, andmeans operatable from merger outsidethemixing chamber for regulating said oil controlling means.

3. In combination with a casing having therein a mixing chamber provided with ports for the entrance and exhaust of air, a nozzle device inside the heating chamber provided with a port discharging directly at a fixed point in the wall of the chamber, means for heating by independent external means said portion of the wall of the chamber, a valve controlling the' supply oi 011 delivered from said nozzle, and a lever member controlling said valve, the end of said lever member being in the form of a blade or wing lying within the body of the chamber in the path of air passing through the mixing chamber whereby whenever a r passes through said chamber it strikes said blade or wing to open the valve and adm1t oil to the heated plate, for the-purposes set forth.

4. A device of the class described including a casing having therein a mixing chamber provided with ports for the entrance and exhaust of air, the exhaust port for the air being located in the upper portion thereof, a nozzle device inside the mixing chamber provided with a port discharging down-- ward toward the bottom of the chamber, means for heating b independent external means the portion 0 the wall of the cham- I ber which is directly below said nozzle, a valve controlling the supply of oil delivered, from said nozzle, a lever member controlling said valve, the end of said lever member 'being in the form of a blade 'or wing lying within the body of the chamber in the path of air passing through the mixing chamber whereby whenever air passes through said chamber it strikes said blade or wing to open the valve and admit oil to said heated portion of the chamber for the purposes set forth. i

5. In a device of the class described, ,in combination with a mixing chamber having entrance and exhaust ports for air, a heatable plate forming one portion of an exterior wall of said mixing chamber, a nozzle inside the chamber. directed toward said heatable plate, means for supplying oil to said plate, a hood over said nozzle insuring the oil contacting said plate, and means operated by air passing through the mixing chamber for regulating said oil nozzle, .for the purposes set forth.

6. In a device of the class described, in combination with a casing having ports for the entrance and exhaust of air, a valve inside' the casing, a lever arm also inside the casing connected to said valve and having a wing lying in the path of air traveling through the casing, an arm extending from said lever, a pull rod operatable from outside the casing engaging said arm, and an adjusting screw for regulating the movement of said arm, all of the parts being arranged and disposed substantially as shown and described for the purposes set forth.

7. In the art described, a hollow chamber having suitable walls in one of which there is a circular perforation screw threaded in combination with a plate havin screw threads to fit the threads in said per oration and inserted therein wherebysaid heating plate forms a wall of said chamber, and electrical connections for heating said plate, this in combination with means inside the chamber for directing oil against said plate.

8. In the art described, a hollow chamber having suitable walls in one of whichthere is a circular perforatiomin combination with a removable plate of corresponding form closely fitting in said perforation to form a wall of said chamber, and electrical connections for heating said plate, this in combination with means inside the chamber for directing oil against said plate.

9. A device of the class described, including a carbureter body and a pipe adjacent thereto adapted to be connected to the exhaust of an engine, means for detachably securing the two together, a detachable plate interposed between the carburetor and the pipe forming a portion of the wall of each, and means for electrically heating the plate.

10. Ina device of the class described, in

combination with a mixing chamber having entrance and exhaust ports for air, a heatable plate forming one portion of an exterior wall of said mixing chamber, a nozzle inside the chamber directed toward said heatable plate, means for supplying oil to said plate, and a hood over said nozzle insuring the oil contacting said plate.

1.1. In a device of the class described, in

combination with a mixing chamber having entrance and exhaust ports for air, a heatable plate forming one portion of the bottom exterior wallof said mixing chamber, a nozzle inside the chamber pointing downward toward said heatable-plate, means for supplying oil to said plate, and a hood over said nozzle insuring the oil contacting said plate, the air entrance port being at the side of the plate and the exhaust port .being above the plate, for the purposes set forth.

12-. In a device of the class described, in combination with a mixing chamber having entrance and exhaust ports for air, aheatable plate forming one portion of the bottom exterior wall of said mixing chamber, a nozzle inside the chamber pointing downward toward said heatable plate, means for supplying oil to said plate, and a hood over said nozzle insuring the oil contacting said plate, the air entrance port being at the side of the plate and the exhaust port being above the plate, and means operated by'air passing from said entrance port through the chamber and out of the exhaust port for &

controlling the admission of oil to said nozzle, for the purposes set forth.

13. In a device of the class described, in

- combination with a mixing chamber having entranceand exhaust ports for air, a heatable plate forming one portion of an exterior wall ofsaid mixing chamber and adapted to be swept by air passing through the chamber, a nozzle inside the chamber directed toward said heatable plate, means for supplying oil to said plate, and a hood over said nozzle insuring the oilcontacting said plate. v

14. In a device of the class described, in combination with a mixing chamber having entrance and exhaust ports for air, a heatable plate forming one portion of an exterior wall of said mixing chamber and adapted to be swept by air passing through the chamber, a nozzle inside the chamber directed toward said heatable plate, means for supplying oil to said-plate, there being a passageway of which said heatable plate is one wallformed outside through which exhaust gases may be passed, and a hood over said nozzle insuring the oil contacting said plate.

15. In a device of the class described, in combination with a mixing chamber having entrance and exhaust ports for air, a heatable plate forming one portion of an exterior wall of said mixing chamber and adapted to be swept by air passing through the chamber, directed toward said heatable plate, means for supplying oil to said plate, there bein a passageway of which said hea -table plate is one wall formed outside the chamber throu h which exhaust gases may be passed, a hoe over said nozzle insuring the oil contactingsaid plate, and electrical means for heating said plate. 3

16. In a device of the class described, a

- pipe adapted to be connected to the exhaust 4 of and of an engine, a carbureter'chamber outside on one-side of said pipe, the two having at their place of common contact one common wall and an electric heating device the chamber the wall of said a nozzle inside the chamber embedded in said common wall between the carbureterchamber and the pipe for the of both where they contact one with the other, and means for said plate.

18. In a device of the class described, the combination of a carbureter body, an oil nozzle inside the carbureter body directed toward a definite point in one portion of the wall of said carbureter body, a pipe adapted to be connected to the exhaust of the engine lying wholly outside the carbureter body contacting it at the point in the wall of the carbureter body to which said nozzle is directed in such a Way that the carbureter body and said pipe at said point have one common wall, and an electrical device within said common wall for heating it 'for the purposes set forth.

19. In a device of the combination of a nozzle inside the toward a definite electrically heating carbureter body, an oil carbureter body directed point in one portion of carbureter body, a pipe adapted to be connected to the exhaust of the engine lying wholly outside the car-'- bureter body contacting it at the point in thekfi wall of the carbureter body to which said nozzle is directed in such a way that the carbureter body and said pipe at said point have one common wall, a removable plate forming said common wall and means for electrically heating said plate for the purposes set forth.

In witness whereof we have hereunto subscribed our names in the presence of two witnesses.

FRANK N. PERCIVAL. WILLIAM PATTERSON. I/Vitnesses:

H. Q. TURNER, DWIGHT B. CHEEVER.

Copies of this patent may be obtained for live cents each, by addressing the Commissioner of Patents,

Washington, D. C.

class described, the i 

